ItemChildDelegate<T> class abstract

Abstract delegate for providing items to an item picker.

Defines an interface for accessing items by index, used by ItemPickerLayout to build the list or grid of items. Concrete implementations include ItemList for fixed arrays and ItemBuilder for lazy generation.

See also:

• ItemList, which wraps a fixed list of items.
• ItemBuilder, which generates items on demand.

Implementers

• ItemBuilder
• ItemList

Constructors

ItemChildDelegate()

Creates an ItemChildDelegate.

const

Properties

hashCode → int

The hash code for this object.

no setter, inherited

itemCount → int?

The total number of items, or null if infinite or unknown.

no setter

runtimeType → Type

A representation of the runtime type of the object.

no setter, inherited

Methods

noSuchMethod(Invocation invocation) → dynamic

Invoked when a nonexistent method or property is accessed.

inherited

toString() → String

A string representation of this object.

inherited

Operators

operator ==(Object other) → bool

The equality operator.

inherited

operator [](int index) → T?

Retrieves the item at the specified index.